Free Online Image Converter

Convert PNG, JPG, WebP, AVIF, GIF, and BMP images online — all in your browser with no uploads.

No Image Loaded – open an image to convert it online

Click "Open Image" to get started

Supports: JPG, PNG, WebP, AVIF, GIF, BMP
  1. Click Open Image and choose a PNG, JPG, WebP, AVIF, GIF, or BMP file.
  2. Select the output format you want (PNG, JPG, WebP, AVIF, GIF, or BMP).
  3. If converting to JPG, WebP, or AVIF, adjust the Quality slider to balance file size and image fidelity.
  4. Preview the file size estimate in real-time (for JPG and WebP).
  5. Click Save Image to download the converted file.

Converting from PNG to JPG reduces file size dramatically for photos without transparency. Converting from JPG to PNG is useful when you need lossless quality or transparency support. Modern formats like WebP and AVIF offer superior compression while maintaining visual quality, making them ideal for web performance. GIF and BMP conversions are less common but still supported for legacy systems or specific use cases.

This tool supports PNG (lossless, transparency-friendly), JPG (lossy, best for photos), WebP (modern, efficient compression), AVIF (cutting-edge, excellent quality-to-size ratio), GIF (legacy, animation support), and BMP (uncompressed, large file sizes). JPG, WebP, and AVIF allow quality adjustment from 1% to 100%, giving you full control over compression.

LeanTul's image tools also include Image Resize, Image Rotate, and Image Merge for quick editing workflows.

Are my images uploaded when I convert them?

No. All conversions happen entirely in your browser using JavaScript and the Canvas API. Your images never leave your device, ensuring full privacy and security.

What image formats can I convert between?

You can convert images to and from PNG, JPG, WebP, AVIF, GIF, and BMP formats. The tool supports all modern image formats commonly used for web and print.

Can I control the quality when converting to JPG or WebP?

Yes. When converting to JPG, WebP, or AVIF, a quality slider appears allowing you to adjust compression from 1% to 100%. Higher quality means larger file sizes but better image fidelity.

Why would I convert an image and reduce its quality?

Reducing quality during conversion shrinks file size significantly, which is useful for faster website loading, email attachments, or saving storage space. Often a quality setting of 80-90% produces visually similar results with much smaller files.